Help to find "missing file" error box after sleep / cover closer on MacPro

How can I find out which file can not be found from which program?

I am at a loss - do I really have to leave one program open during sleep to find out which one?

Any chance you’re running BetterTouchTool? A similar cascade was recently diagnosed.

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Yup - I am. Thanks a lot.

Will update it tomorrow morning.